Reversing mechanism.



3 SHEETS-SHEET 1.

PATBNTE'D APR. 21, 1908.

G. STTMANN.

H uc Wto@ Pfff/Z. Q

RBVERSING MEGHANISM.

APPLICATION FILED MAR. 1s. 1907.

@KRT/woog@ WM No. 885,390. PATENTED APR. 21, 1908.

G. SITTMANN.

REVBRSING MEGHANISM.

.^.PPLIOATION'I`ILED MAR. 16. 1907..

3 SHEETS-SHBBT 2.

PATENTED APR. 214; 1908. G. SITTMANN.

@wi/Newco (.USlAV SIT'IMANN, OF NEW )'Ollli. i'. Y.

Specifica/tion of Letters Patent.

Patented April. 21, 1908.

Application filed March 16, 1907. Serial No. 362,604.

To all Iuff/tom 'it lmuy conci/"1i:

Be it known that L. (ll's'r.\v Srrlwmxx, a citizen of the lt'nitedStalesfand resident of New York city, horough of llrooklvn. State of New York, havt` invented certain-new and,

useful Improvements in Reversing Mci-hauism, of which thc following is a spia-ilication.

The object of in v invention is to provide simple and ellieicnt means forrotating a shaft forward or'rcvcrse' at will from a shaft usually driven in one direction, and Vmv in vention comprises the details ofl ii-npro-vemcnt andthe combinations ol parts that will he more fully hereinafter set forth and .then

pointed out in the claims.

Fig. l is a, face view of one of the disks.

Reference is to be had in thc accompanyine drawings forming )art hereof, wherein,

t.Figo re l is a. central sectional view of a reversing mechanism emhodyiug in v invention. Fig. il is a detail view of hrake controlling means. Fig. l ay sectional viewsuhstantiallv at. right. angles to Fig. l. Fig. 5 is a face view of one oll the driving disks and its lever. Fig.

is a detail pclxspective view of said lever.

Fig. 7 a sectional view showing parts in full lines. Fig. S is a sectional view suhstantially on the line S, S in Fig. 1, Fig. t) is a sectional view of one of the rotating disks. Similar numerals of reference indicate corresponding parts in the several views.

The numeral l indicates a driving shaft .which may he supported and rotated in any suitable manner and 2 indicates a shaft .to hc driven forward and reverse by shaft 1.

3 indicates a suitable casing which is shown provided with huhs il mounted .upon shafts, 1, 2, and casing il is shown divided and lits )art-s connected rigidly. as hv screws 4.

ithin casing 3 and secured upon the ends of shafts l, 2, are disks or lever supports 4, 5 adapted to rotate therewithwithin the casing. The disks or supports 4, 5 pivotalljfr carry ,levers 6,7 which are shown-mounted upon shafts S, supported by said disks. The

5o 10 ot'said disks, aluttments 11 el said disks disks 4, l5 are shown pro vided'with recesses 9, into which the levers (l, 7 arel adapted to pass. lf'liave shown said levers as bifureated and receiving between them the projecting parts being shown located adjacent opposite ends ol said levers, whereby the shafts 8 ar .re'

` lieved from twisting strains.

At 12 1s a. rod or shaft secured to and ro- '55 jecting across easing" 3 and vsubstantialljr midwa \Y hetwcen disks `l, .5. Seid rod or shaft 12 maj` he rigidlv secured in place in suitable sockets het wcen the mcmhcrs of the easing f5. Al 14 is a -lcvcr or arm mounted to slide upon rod or shaft l2 and projecting on opposite sides of the lat ter, being shown provided with hubs ll upon opposite lsides, mounted to slide upon rod or shaft l2. rl`he lever or arm H is pivvt'ltallv connected with the levers ti. 7, 'for which purpose lV have shown the 'lever l-l as provided with spherical ends 111-" journaled in hearings or seats 4, 5, of levers (l, 7. For convenience in connecting the levers (i, T and 14 l have shown the levers (i, 7 provided with caps 6, 7 secured upon the levers hv screws l5, the seats el, 5 being shown formed partl \v in the levers and partly in their caps.

Between the inner faces of the disks 4 5,'isl located a loose ring lo provided with opposed openings tti through which shaft l2 passes and also through which the huhs 1l" are adapted to slide. 'lhe ring lo may 'oc guided on its edges h v casing 3%, and the meeting faces of the disks y-l-, 5 and ring l are preferably ground.

)leans are provided for'tirmlv clamping om` of the shafts 1 or l to casing 3, so that all the parts will rotate in unison in the same direction. and for this purpose vl have shown a fric-tion ring 17 mounted 'loosely upon the huh portion 3* of casing l and 4within the l/atlcr, said ring heilig adapted to hear against the outer fai e of disk 5 for frictional engagement therewith.

A'l 1S are dogs adapted to bear at their projected parts 18ul against ring 17,;or the projection 1.7 thereof, casing 3 having slots 3" for the passage of projection 1S. Said dogs also have projections or hooks 18h adapted to engage a collar 1,9 mounted upon huh 3 of casing 3, as b v intermeshing screw threads, any suitable means being provided for locking collar 1l) in set position. 'l`he outer ends 18 of said dogs are adapted to be engaged h va suitable cone-like sleeve 20 mounted to slide upon hub 3. Auv suitn able means, such as a lever 21 'suitahljv connected with sleeve: 20, may he provided forshifting said sleeve while permitting its rolll) Y surrounding 'the casing adapted to frictionlally grip the same. -This band may be operated by any suitable means. I have shown band 22 provided with lugs 23 having projections or cams 24"adapted to be engaged by correspozidingi. projections or cams 25 carried rigidly by ay shaft 26 journaled in lugs 23 and rovded with a crank 27 connected by a ink 28 with lever 21. The relation of these parts is such that when lever 21 is shifted to the right in Fig. 1, the sleeve 2O will release dogs 18 and band 22 will grip 'gicasing 3 to keepit from rotating, and when lever 21 is moved to the left Fig. 1, band 22 Will release casing 3 and Steeve 2() will cause dogs 18 to operate ring i7 to lock the parts together.

The operation of my improvements may be described as follows :,-Assuming that shaft 1 be driven continually in one direction, as lfrom a gas engine, and that shaft 2 be connected with the propelier of a boat, and that it is desired to drive' the boat forwardly, lever 21 will be shifted to the left in Fig. 1 from the neutral position shown in said yfigure to cause dogs 18 and ring 17 to looft the parts firmly together, and therenp i shaft 2 will rotate at the same speed and in the same' direction as shaft ,1. When it is desired to reverse the direction of rotation of shaft 2 and its propeller the lever 21 is shifted to the right. in Fig. 1 to release dogs 18 and ring 17, and 'cause band 22 to grip casing 3, the cams 25 then engaging cams 24, the rotation of shaft 1 in the same direction as before mentioned now causing the lever or arm 14, by reason of its pivotal connection 4with shaft 12, to rock on its axis around said shaft, and its end connected with lever 7, by moving in ai direction reverse to the movement of the point of connection of lever 14 with lever 6, thereby causes disk 5 and shaft 2 to reverse in direction, and simultaneously lever 14 will slide back and forth along shaft 12't0 compensate for the angular relations assumed by levers 6, 7, which also rock on their pivots into and from the openings 9 of .disks 4, 5. Fig. 1 shows levers 6, 7 and 14 i'n 011e position while Fig. 4 shows a different position they have assumed 'while rotating .from the position shown in Fig. 1.

By means of my improvements a simple reversing mechanism may be produced not requiring gear wheels and while I have shown and described an embodiment of my invention, the arrangements may 'be changed without departing from the spirit thereofl Having now described my invention, what I claim is 1. A reversing mechanism comprising a casing, driving and driven shafts, means interposed between said shafts to limit the thrust of said shafts toward each other, a lever movably supported between said shafts, means for pivotally connecting said lever with said shafts, means to lock said shafts, firmly to said casing, and means to hold said lever from rotating with said shafts while permitting it to rock and slidewith respec to said shafts.

2. A reversing mechanism comprising v driving and driven shafts, a thrust ring between said shafts, a lever interposed between said shafts, a pivotal support for said lever adapted to permit lateral bodily movement thereof, means for pivotally connecting said lever with said sha tation of said lever-support, and means for locking said parts firmly together.

3. A reversing mechanism comprising a casing, driving and driven shafts located in substantial axial alinement, means interposed hetween said shafts to limit the thrust of said shafts toward each other, levers pivotally connected with said shafts, a lever interposed between and pivotally connected with the first named levers, a pivotal support for the second named lever adapted to permit it to rock and also move laterally, meansto limit rotation of said lever-support,

s, means for limiting roand means to lock said shaft firmly to sai-d i casing.

4. A reversing mechanism comprising a pair of shafts located in substantial axial alinement, a thrust ring between s'aid shafts,

levers pivotally connected with said shafts,

a ca sing surrounding said levers, a support carried by said casing, a lever mounted upon said sup ort and adapted torock and also vslide bo ily laterally, said lever being pivotally connected with the first named levers,\ means to limit rotation of said casing and means to lock said shafts rmly to said casing. I

5. A reversing mechanism comprising a pair f shafts rovided with disks,` a rin betweensaid disV s, a casing surrounding sai disks and provided with a support, allever movably mounted upon said support, means for`pivotally connecting said lever with said shafts, means to limit rotation of said casing, and means to lock said parts firmly together.

o. A lreversing mechanism4 comprising a pair of shafts provided. with disks, a rin between and adapted to bear upon said dis s, a casing surrounding said disks and provided move latera y, levers pivotally connected ivith said shafts and with said first named lever, nieans to limit rotation of said casing, and means to lock said parts irinly together. 7. A reversing mechanism comprising` a pair of shafts provided with disks having iorking faces, a loose ring between said 'disks provided `with corresponding working` faces, a casing surrounding said disks and providedfwith asupport, a lever slidably mounted upon said support and adapted to ivotally connected rock thereon, levers with said shafts and with said first nanied lever, nieans tolirnit rotation of said lever, andmeans to lock said parts iirinly together.

8: i reversing mechanism comprising ir pair of shafts provided with disks having inner and outer Working faces, ai casing surrounding said disks and provided with a working face to engage the face of one of said disks, a loose ring between said disks provided with working faces to co-act with corres ending faces of said disks, a support carried by said casing, a' lever slidably mounted upon said support and adapted to lrook thereon, levers; pivotall)Y connecting said shafts With the first-named lever, frietion devices to engage one of said disks,

workingfnce to engage the face of one of said disks, a loose `ring, between saidf'disks provided with working faces to eo-aot with corresponding faces oiv sind disks, a support -ciirried by said casing, a lever slidiihlv mounted upon said support and :uhipted to rock thereon, levers iivotiilly connecting said shafts with the iirst iiriined lover, n friotion ring 'Within said'cusing' to engage a face of one of said disks, dogs inovaiily sup GUSTAV SITTMANN ported .and projecting through openings in said ozis- 

